Coronary artery disease is a blockage or narrowing (stenosis) of the arteries that supply blood to the heart muscle, often due to a buildup of fatty plaque inside the arteries. A severe enough blockage may cause a heart attack. If not quickly treated, the blockage can cause parts of the heart muscle to die.
1 This final stage usually occurs at just over 14 years of age. 2  Girls will stop growing about 1-2 years after menstruation begins, reaching their full adult height by age 14-15.3  Breasts and genitals are fully developed at the end of this stage.nce their period starts, girls typically gain another 1 to 2 inches in height, reaching their full adult height by age 14 or 15. However there is a very broad range of time in which girls hit puberty-related growth spurts.
As the teenagers approach puberty, their growth usually stops. Boys tend to reach puberty by the time they turn 17 while girls do the same when they are around 15 to 17 years old. The bones of teenagers grow extremely quickly during a growth spurt, but the tendons and muscles do not.